Thats correct in some aspects, some clamp to rail other don't. The ones I use in my industry are wooden, the wedge stops the unit rolling once brakes are released.
You can motor over them if left in but it is dangerous
Thanks for the replies.
Maybe i need to explain a bit more how our ones...
Same principle I think but wheel chocks seem to sit higher up the wheel. They should be 25% of the wheel to be effective.
Rail chocks are principally there to stop a wheel rolling, mainly for maintenance.
However there are major issues in being left in place and driven over causing a derailment.
Thanks both for replies.
In terms of materials, the track is steel as are the wheel sets. The chock is steamed beech. The wheel sets range from 720 to 840mm.
I’ve added 2 very crude drawings.
The wood tends deform on the inside (flange ) side of the wheel
Hi all,
I am new to the forum and hoping for some help please.
I work in the rail industry and we use chock blocks to stop trains or carriages rolling. I would like to know about the technical side of how and why the chock stops the wheel from moving. Obviously it wedges the wheel to stop...